首页
登录
职称英语
Every newborn baby is dealt a genetic hand of cards which helps to determin
Every newborn baby is dealt a genetic hand of cards which helps to determin
游客
2023-11-18
44
管理
问题
Every newborn baby is dealt a genetic hand of cards which helps to determine how long he or she will be allowed to play the game of life. There are good cards, which predispose those who have them to a long and healthy existence, and there are bad cards, which predispose people to high blood pressure, say, or heart disease. Occasionally, cards are dealt out that doom their holders to an early death. In the past, people never knew exactly which cards — in other words, which genes — they had been dealt. They could guess at the future only by looking at the kind of health problems experienced by their parents or grandparents.
Genetic testing, which makes it possible to probe for dangerous genes, has changed all this. But, until recently, if you tested positive for a bad gene, you were not obliged to reveal this to anyone else except in a few extreme circumstances. This month, however, Britain became the first country in the world to allow life insurers to ask for test results.
So far, approval has been given only for a test for a fatal brain disorder known as Huntington’s disease. But ten other tests (for seven diseases) are already in use and are awaiting similar approval.
The independent body that gives approval, the Department of Health’s Genetics and Insurance Committee does not have to decide whether the use of genetic information in insurance is ethical. It must judge only whether the tests are believable to insurers. In the case of Huntington’s disease the answer is clear-cut. People unlucky enough to have this gene will die early, and cost life insurers dearly.
This is only the start. Clear-cut genetic answers, where a gene is simply and directly related to a person’s risk of death, are uncommon. More usually, a group of genes is associated with the risk of developing a common disease, dependent on the presence of other genetic or environmental factors. But, as tests improve, it will become possible to predict whether or not a particular individual is at risk. In the next few years researchers will discover more and more about the functions of individual genes and what health risks or benefits — are associated with them. [br] What is the function of genetic testing according to this passage?
选项
A、It helps people know what health problems their parents ever experienced.
B、It enables people to change those dangerous genes to better ones.
C、It reveals possible genetic diseases people may have.
D、It calls on the public to help people who have bad genes.
答案
C
解析
推断题。根据第二段提到的“Genetic testing,which makes it possible to probe for dangerous genes.has changed all this.”。可见基因测试的目的是为了揭示人类所拥有的潜在危险基因,故选C A 、B 、D 在文中未提及。
转载请注明原文地址:https://tihaiku.com/zcyy/3197102.html
相关试题推荐
Researchersrecentlydeterminedthattheraptors,whichweretheIndiansubc
Hewas______determinedthanyou,butheturnedouttObethefirsttobackout
______isgenerallyaccepted,economicalgrowthisdeterminedbythesmoothdeve
Everynewbornbabyisdealtagenetichandofcardswhichhelpstodetermin
Dianaisso______tosucceedthatnothingwillstopher.A、determinedB、willing
Thescienceofgeneticsisaflourishingnewindustry,nourishedbythefede
Thescienceofgeneticsisaflourishingnewindustry,nourishedbythefede
Thescienceofgeneticsisaflourishingnewindustry,nourishedbythefede
Thescienceofgeneticsisaflourishingnewindustry,nourishedbythefede
Thescienceofgeneticsisaflourishingnewindustry,nourishedbythefede
随机试题
Whatislearnedaboutthecompany’snewsletter?[originaltext]WDoyoueverread
PartⅡReadingComprehension(SkimmingandScanning)Directions:Inthispart,y
Thefactthatblindpeoplecan"see"thingsusingotherpartsoftheirbod
19岁,女性,身材较高大,有发育不良的子宫及输卵管,乳房发育差,阴毛、腋毛稀少,
下列关于初乳的叙述,错误的是()A.呈淡黄色,含有丰富的脂质 B.含
下列最适宜作为考核利润中心负责人业绩的指标是()。 A
不属于治疗梅毒的中药是A.硼砂B.轻粉C.大风子D.苦参E.土茯苓
若缺铁性贫血患者经铁剂治疗有效A.3~5天B.7~10天C.15天以后D.1~2
元代人在《唐律疏议序》中说:“乘之(指唐律)则过,除之则不及,过与不及,其失均矣
A.cosx-sinx+C B.sinx+cosx+C C.sinx-cos
最新回复
(
0
)